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- OPCodes are 8 bits, 0x0-0xB, lowest bits. Arguments come BEFORE(!!!!)
-
- def value():
- if(Y==1): return state_r1+cmd
- if(Y==2): return state_r2+cmd
- if(Y==3): return cmd_0x10+(cmd<<1) #drops the opcode
- else: return cmd
-
-
- -0x0, PUSH, 48 bit operand, encoded 0xX000ZZZZZZZZ:
- Y=X>>2
- if(X & 3 == 2): r1 = mem[value(Y)]
- if(X & 3 != 2): r1 = value(Y)
- state_reg3=*addr
- -0x1, 16 bit operand, encoded 0xZYZ1:
- r1 = value(Y)
- r1 = state_reg3...???????
- -0x2, 16 bit operand, encoded 0xZYZ1:
-
-
- -0x3, 32 bit operand, encoded 0x3:
- r1 = state_reg3 + *addr
-
-
-
-
- XX001000
- ^
- -0x8, JMP, 32 bit operand, encoded bXX001000:
- state_reg2=X*4
- *(state_reg2)=pc
- entrypoint=X
-
- -0xA, JMP, 32 bit operand, encoded bXAXXYYYY:
-
-
- -0x5:
- --&3==0 aka integer:
- -0: to_int
- -2: minus
- -3: invert
- -4,8: compare w/ zero
- -5: absolute
- -6: ??
- -7: inferior to one
- -9: not equal to zero
- -0xa
- -0xb: is_positive
- --&3==1 aka float:
- -1: convert to word fixed point
- -2: minus
- -5: ABS
- -6: inferior to 0
- -7: inferior or equal to 0
- -8: equal to zero
- -9: not equal to zero
- -0xA: inferior or equal to zero
- -0xB: inferior to zero
-
-
-
- 1da3f8
- ======
- tmp=reg3
- reg3-=0x4
- t3[left]=tmp-1
- t3[right]=tmp-4
-
-
- =============================================================================================================
- TODO:
- 0x0: reverse unknowns + fix push label vs val
- 0x1: pop, reverse unknowns(get_arg)
- 0x2: to reverse(FUN_002fdd68)
- 0x4: to reverse(FUN_002fdd68)
- 0xB: to reverse
- -----
- 0x8: figure out first arg of jmp, offset?
- 0x7: figure out args and diff between 3 jmp
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